Door-knob attachment and lock



N0. 6I3,l69. Patented Oct. 25, I898. J. W. T. MORRIS.

DOOR KNOB ATTACHMENT AND LOCK.

(Application filed Oct. 29, 1897.)

(No Model.)

. ovmaga.

THE nu ms Psvsss co PHOTO-L 4 a. c

UNITED STATES PATENT OFFICE.

J OIIl\ W. T. MORRIS, OF SUMMERLAND, CALIFORNIA.

DOOR -KNOB ATTACHMENT AND LOCK.

SPECIFICATION forming part of Letters Patent No. 613,169, dated October25, 1898.

Application filed. October 29, 1897. Serial No. 656,847. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN W. T. MORRIS, a citizen of the United States,residing at Summerland, in the county of Santa Barbara and State ofCalifornia, have invented certain new and useful Improvements in aCombined Door-Knob Attachment and Look, of which the following is afull, clear, and exact description, reference being had to theaccompanyingdrawings, which form a part of this specification.

My invention relates to certain improvements in securing door-knobs tothe knobshaft, the same being adjustable to take up lost motion andprevent wear and noise by dispensing with the rattling incidental todevices of this nature, and to form an efficient look when the same isdesired by preventing the knob-shaft from turning in the door; and myinvention consists in certain features of novelty hereinafter describedand claimed.

Figure I represents an edge elevation of a door, the same being brokenand showing my improved door-knob attachment and lock. Fig. II is avertical section of a portion of the door and a longitudinal section ofthe knobshaft, showing means for securing the knobs to the shaft. Fig.III is a transverse section taken on line III III, Fig. I. Fig. IV is aside elevation of the inner'knob. Fig. V is a transverse section takenon line V V, Fig. IV. Fig. VI is a broken View of the edge of adoor,showing myimproved means for locking the knob-shaft. Fig. VII is asection taken through the center of the outer knob and its sleeve. Fig.VIII is a side elevation of the inner locking-pin. Fig. IX is a frontelevation of the inner locking-pin. Fig. X is a side elevation of theouter retaining-pin. Fig. X1 is a plan view of the knob-shaft. Fig. XIIis an end View of the knob-shaft. Fig. XIII is a broken view of theinner escutcheon-plate with collar thereon shown isometrically. Fig. XIVis an isometrical view of the inner escutcheon-plate, showing the underside of the collar connected therewith. Fig. XV is an isometrical viewof my improved locking-ring. Fig. XVI is a detail view showing operationof locking-ring.

Referring to the drawings, 1 represents the door, 2 the outer knob, and3 the inner knob.

4 represents my improved knob-shaft having a central portion 5, which isnon-threaded and having screw-threaded ends 6.

7 represents longitudinal grooves in the knob-shaft, which extend fromthe ends of the same to the squared central portion 5. The knobs 2 3 areprovided with internal threaded sleeves 8 9, by which they may bescrewed onto the knob-shaft 4 and adjusted according to the thickness ofthe door 1. The sleeve 8 of the outer knob 2 is provided with a hole 10,in which may be inserted a pin 11 for securing the outer knob to theknob-shaft, or, in other words, preventing its turning upon theknob-shaft 4E. The pin 11 is provided on its inner face, near its upperend, with a groove 12, surmounted by ahead 13, the groove 12 in theretaining-pin 11 fitting over the collar 14. on theouterescutcheon 15,and as the lower end of said pin 11 extends into the groove 7 of theknob-shaft 4 the outer knob is prevented from rotating on theknob-shaft, and as the collar 14 rests in the groove 12 the pin 11 willbe prevented from withdrawal until the knob-shaft has been shiftedoutwardly.

16 represents a small notch 011 the outer face of the pin 11, in which atool may be inserted in order to Withdraw said pin 11 when it is desiredto detach the outer knob from the knob-shaft. The sleeve 9 of the innerknob 3 is provided with a series" of holes 17, in order to finely adjustthe inner knob to the knob-shaft.

18 represents a locking-pin having an inner shoulder 19 and a notch 20,said notch serving the same purpose for withdrawing the pin as the notch16 on the pin 11. The pin 18 is inserted in one of the holes 17 in thesleeve 9, its lower end extending into the groove 7 in the knob-shaft,the inner knob being capable of fine adjustment by said pin 18 beinginserted in either one of the holes 17 in the sleeve 9, thus taking upany lost motion between the knobs and knob-shaft. When said pin 18 is inposition, it will prevent the knob 13 from turning without turning withit the knob-shaft 4.

21 represents the inner escutcheon, having an outwardly-extending collar22 thereon, said collar being provided with shoulders 23 and a notch 24cut in the outer face of the collar. The purpose of the notch 24 in theICO collar 22 is to permit the insertion of the locking-pin 18 or thewithdrawal of the same, the shoulder 19 of the locking-pin 18, passingbeneath the outeredge of the collar 22 as the knob is partially rotatedin opening or shutting the door, the collar thus holding saidlocking-pin 18 from withdrawal until it is adjusted to coincide with thenotch 24, at which time it may be withdrawn, if desired.

25 represents a pin or stud on the under side of the collar 22.

26 represents my improved locking-ring adapted to fit over the collar22.

27 represents a slot in the locking-ring which passes over the pin 25 onthe collar in placing the locking-ring in position.

28 represents an ofiset in the slot 27, into which the pin 25 passes asthe locking-ring is partially rotated, said offset and pin serving tohold the locking-ring in its extreme inward position and at which timethe locking-ring is not performing its office of locking the knob-shaft.

29 represents a notch on the outer face of the locking-ring whichcorresponds with the notch 24 in the collar 22 and is for the samepurpose of permitting the pin 18 to be inserted in position.

30 represents a recess on the outer face of the locking-ring 26, saidrecess being somewhat wider at its rear end than it is at its forwardend. The purpose of the recess 30 is to permit the locking-ring to bemoved outwardly and engaging the upper end of the locking-pin 18 for thepurpose of serving as a lock and preventing the knobs and shaft fromrotating. As the locking-ring is moved outwardly to engage thelocking-pin in order to lock the door, the pin 25 on the collar 22 stillremaining within the inner slot 27 prevents the locking-ring fromrotating, and thus firmly locks the door. The recess 30 is made wider atits inner end, so that the same will be readily retained upon the pin 18until such time as it is desired to shift the locking-ring backward andunlock the door, at which time a slight turning of the lockingringcauses the pin 25 to again enter the offset 28 and hold the locking-ringin its inner position.

\Vhen the locking-ring has been pressed backward to unlock the door, theknob-shaft may be turned to a limited extent to force the latch backwardwhen it is desired to open the door. The rotation of the knob-shaft islimited by the pin 18 coming in contact with the shoulders 23 of thecollar 22.

I claim as my invention- 1. The combination of a grooved knobshaft, anescutcheon having a collar, a knob having a sleeve with a hole therein,a locking-pin having a shoulder and a locking-ring on the collar adaptedto engage the lockingpin and prevent the rotation of the knobshaft,substantially as set forth.

2. The combination of a grooved knobshaft, an escutcheon havinga collar,a knob having a sleeve with one or more holes therein, a locking-pinhaving a shoulder, a movable locking-ring and recesses in thelockingring and collar for the insertion of the locking-pin,substantially as set forth.

3. The combination of a grooved knobshaft, a knob having a sleeve, a pinadapted to extend through the sleeve and into the grooved knob-shaft, alocking-ring having a recess, said locking-ring being movable so thatthe locking-pin will extend into said recess when the ring has beenshifted outwardly, a slot on the rear side of the lockingring, a pin onthe collar of the escutcheon adapted to enter said slot and an offset insaid slot into which the ring of the collar may pass in order to holdthe locking-ring at its extreme inward position, substantially as setforth.

4. The combination of a grooved knobshaft, knobs having sleeves thereon,holes in said sleeves, locking-pins adapted to extend through saidsleeves, shoulders on said locking-pins and notches on the locking-pinsfor the insertion of a tool in removing the same, substantially as setforth.

The foregoing specification signed at Summerland, California, this 8thday of October,

JOHN W. T. MORRIS. In presence of BYRON PRESTON, BISHOP A. BEALS.

